Marketable Securities

3 Months Ended

Mar. 31, 2013

Marketable Securities

Marketable Securities

3. Marketable Securities

As of March 31, 2013, there are no available-for-sale marketable securities outstanding.

As of December 31, 2012, available-for-sale marketable securities consisted of the following (in thousands):

	Amortized		Gross Unrealized		Gross Unrealized
	Value		Gains		Losses		Fair Value
Marketable securities:
Domestic corporate commercial paper	$	4,000	—		—		$	4,000
Total	$	4,000	$	—	$	—	$	4,000

There were no debt securities in an unrealized loss position as of December 31, 2012.